Re: [PATCH v8] bio: limit bio max size

[Bart Van Assche]

On 4/21/21 2:47 AM, Changheun Lee wrote:
> bio size can grow up to 4GB when muli-page bvec is enabled.
> but sometimes it would lead to inefficient behaviors.
> in case of large chunk direct I/O, - 32MB chunk read in user space -
> all pages for 32MB would be merged to a bio structure if the pages
> physical addresses are contiguous. it makes some delay to submit
> until merge complete. bio max size should be limited to a proper size.

Hi Christoph, Ming and Damien,

Can one of you take a look at this patch?

Thanks,

Bart.